Patent GB-190811683-A (GB)
Title: Improvements in and relating to Printing Machines for Printing Post Cards and the like.
Inventor: STEPHEN ROBERT SANDERSON
Filed: 1908-05-29
Granted: 1908-12-17
Abstract: 11,683. Stephen, R. S., and Purvis, J. A. May 29. Printing on post cards, labels, &c. ; platen presses cutting, delivery and inking-apparatus ; feeding- apparatus for webs.-A machine for automatically printing on post cards, wagon labels, &c. comprises adjustable feed-rolls for feeding the web to the machine, an intermittent feed for feeding the web after a platen press has at one operation printed a series of cards, inking- mechanism for the platen, means for cutting the web longitudinally and transversely, and means for delivering the finished cards in a series of counted batches. As shown in Fig. 1, the web is fed from a roll 95 the spindle of which is carried by a lever 97 connected to a lever 102 by means of a link and lever 100. The lever 102 is normally held in position by a pin 103 which engages a slot in the frame, but, when a new roll is to be inserted, the lever 102 can be moved so as to lower the lever 97. The web passes through a guide 128 in a bar 127, and is fed forwards by rolls 113, 119 driven by a chain 110, and gears 108, 116, 114, 121, of which the wheel 116 is interchangeable so that the paper can be fed at different speeds. The rolls 113, 119 may be separated by raising a spring-controlled lever 118, in which the roll 119 is mounted, by means of cams 123 on a shaft 124 operated by a handle 126. The paper then passes through rollers 132, 133, the top one of which tensions the paper, through guide-fingers 135, and then between a platen 28 and reciprocating bed 27. The bed 27 is reciprocated vertically from a rockshaft 14, which is oscillated from a cam on a secondary shaft 7, by means of an adjustable rod 12 connected to an arm 13 on the shaft 14. The rod 12 is adjusted by turning a sleeve 17 on the lower part of the rod, the sleeve engaging a screw on the upper part of the rod and being formed with a handle 18. The shaft 14 may be oscillated adjustably by mounting it in eccentric bearings 217, Fig. 14, loosely mounted in fixed wheels 221. The bearings are held fixed to the wheels 221 by teeth 222 carried by a spring-mounted bar 225. By adjusting the eccentrics 217 relatively to the wheels 221 the position of the shaft 14 is adjusted. A stop 231 enables the eccentrics to be returned to their original position. The bed 27 moves in guides and is reciprocated by means of a rod pivoted to an arm on the shaft 14, and connected by a ball-and-socket joint to a rod 26 on the bed 27. The bed 27 after printing returns under the action of springs. When the bed 27 is in its raised position, the type are inked by rollers 93, 94, Fig. 11, mounted on springs in boxes 88 carried by a sliding frame 85 with projections 86 which move in guides 87, the frame 85 being reciprocated by a spring-controlled lever 83 actuated by a cam on the shaft 7. The rollers 93, 94 move twice across the type, and are then moved back across an inking- roller 60. The roller 60 is supplied by a messenger roll 51 reciprocated from a shaft 53 oscillated by a lever 55 actuated by a cam on the shaft 58, and the roll 51 receives its ink from a ductor roll 36. The roller 60 is fitted with a distributing roller 61, and is driven by chain-gearing from the shaft 58, a freewheel being fitted on the shaft 65 of the roller 60. The roller 60 is also fitted with a hand-wheel. In addition to its rotating movement, the roller 60 is vibrated in the direction of its axis by the mechanism shown in Fig. 9. The roller 60 is splined to the shaft 65 by double feathers 67, and the shaft 65 is fitted with a sleeve 69 carrying an arm 70 in which is freely mounted a bevel-wheel 73, the sleeve 69 being fitted with a balance weight 71. The wheel 73 engages a fixed wheel 68, and, as the shaft 65 rotates, a square eccentric projection 75 on the wheel 73 causes the roller 60 to reciprocate along the shaft 65 owing to the engagement of the projection 75 with guides 76 formed inside the roller 60. The ductor roller 36 is rotated to an adjustable extent for each reciprocation of the bed 27 by means of a pawl 40, Fig. 7, carried by a bellcrank 33, 34 reciprocated from the shaft 14. The pawl 40 actuates a ratchet-wheel 39 on the shaft of roller 36, but the pawl is prevented from engaging the ratchet until near the end of its stroke by an adjustable plate 42 provided with a flange which acts on a pin on the pawl. The roller 36 works in an ink duct formed of a blade 49 regulated by a screw 50. After the printing has taken place and the bed returned, the paper is fed forwards to an extent equal to the length of a post card by means of a roller 140, which is mounted on a shaft intermittently rotated by a ratchet mechanism from the shaft 58. The roller 140 works in conjunction with a sectional roller 136 mounted on a spring-controlled lever 138. The web then passes to rotary cutters on shafts 151, 152, the cutters consisting of fixed cutters 161, Fig. 13, and cutters 164 controlled by springs 165 abutting against fixed collars 166. The shafts 151, 152 are driven by suitable gear, provided with a hand-wheel for use when the machine is being started. The longitudinally cut strips are now cut transversely by a cutter 178 vertically reciprocated from a counterbalanced shaft 168, oscillated by a cam on shaft 58 and an adjustable rod. The paper is held during cutting by springs 184 on fingers 183, which press the paper on to a plate 180. The post cards drop on to a delivery band 185, which passes around rollers 208, 210, and tension rolls 212. The band 185 is driven forward when a certain number of cards have been delivered on to it. To effect this the driving roller 208 of the band is actuated by ratchet-gearing from a shaft 186 by means of a cam 194, levers 196, 199, 200, and a lever 201 provided with a pawl 204. The shaft 186 is itself actuated by ratchet mechanism from the shaft 58, and is so arranged that the shaft 186 revolves once for a number of revolutions of the shaft 58 equal to the number of cards in a packet.